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首页> 外文期刊>Eurasian Soil Science >Changes in the physical properties of soils in the Kamennaya Steppe under the impact of shelterbelts.
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Changes in the physical properties of soils in the Kamennaya Steppe under the impact of shelterbelts.

机译：防护林带的影响下，卡门纳亚草原的土壤物理特性发生了变化。

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The physical properties of ordinary chernozems and meadow-chernozemic soils under different land management practices (maple, larch, birch, and pine sections of the shelterbelts; continuous (since 1959) fallow; and arable field (since 1952)) were studied in the Kamennaya Steppe. The soils had favorable physicochemical properties, light clayey texture, and high microaggregation independently from the type of land management. The long-term impact of the shelterbelts improved the soil structure in the upper part of the humus horizon: the content of agronomically valuable aggregates increased, the content of coarse aggregates (>10 mm) decreased, the aggregation coefficient increased by 3.7-4.3 times, and the water stability of the aggregates became by 8-12% higher. The soils under the shelterbelts were characterized by minimum values of the bulk density and solid phase density and by maximum values of the total, active, and air porosities. At the same time, no considerable differences between water reserves in the studied range of soils were detected. The ratio of the optimum productive water range to the active (productive) water range (OPWR/AWR) within the upper soil meter varied from 0.42-0.44 to 0.45-0.54. This points to changes in the character of perched water: the content of intra-aggregate capillary-perched water decreases, and content of film perched water increases down the soil profile.Notes Translated from Pochvovedenie (2012) 3, 299-308 (Ru).
机译：在Kamennaya研究了不同土地管理实践下的普通黑钙土和草甸黑钙土的物理特性（枫林，落叶松，桦木和松树的防护林带;连续（自1959年以来）休耕;耕地（自1952年以来））草原与土地管理类型无关，土壤具有良好的理化特性，轻质的粘土质地和高的微团聚体。防护林带的长期影响改善了腐殖质地层上部的土壤结构：具有农业价值的骨料含量增加，粗骨料含量（> 10 mm）减少，聚集系数增加了3.7-4.3倍，而骨料的水稳定性提高了8-12％。防护林带下的土壤的特征在于堆积密度和固相密度的最小值，以及总孔隙率，活性孔隙率和空气孔隙率的最大值。同时，在所研究的土壤范围内，未发现水储量之间有显着差异。上部土壤表中的最佳生产水范围与活动（生产）水范围（OPWR / AWR）之比在0.42-0.44至0.45-0.54之间变化。这表明了栖息水的特性发生了变化：集聚体内部的毛细管栖息水的含量降低了，而膜状栖息水的含量则沿着土壤剖面增加了。注意事项摘录自 Pochvovedenie （2012）< i> 3 ，299-308（Ru）。

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